CN200972443Y - Automatic disc seepage absorption instrument - Google Patents
Automatic disc seepage absorption instrument Download PDFInfo
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- CN200972443Y CN200972443Y CN 200620079341 CN200620079341U CN200972443Y CN 200972443 Y CN200972443 Y CN 200972443Y CN 200620079341 CN200620079341 CN 200620079341 CN 200620079341 U CN200620079341 U CN 200620079341U CN 200972443 Y CN200972443 Y CN 200972443Y
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Abstract
The utility model discloses an automatic disc-absorbing meter, which comprises disc-absorbing devices of five sets in each group with different disc diameters. A storage pipe and a drain pipe are fixed in the disc absorbing devices, the upper end of the storage pipe is connected to a disc absorbing controller by a pipe and the third valve on the pipe; an air intake is provided above the absorbing pipe, a first valve is arranged between the air intake and the absorbing pipe; the lower end of the storage pipe is connected to a pressure difference sensor by a pipe, the pressure difference sensor is connected to the disc absorbing controller; a second valve is mounted above the pressure difference sensor and communicated to a pipe of the third valve; the pressure difference sensor converts the water level signal of the infiltration disc into the electric signal, the signal is fed into disc absorbing controller, then the signal of the pressure difference sensor is automatically recorded and stored by a data collector of the disc absorbing controller. The utility model can full-automatically, quickly and accurately determine the hydraulic conductivity of nearly saturated soil and the soil-absorbing rate.
Description
Technical field
The utility model relates to a kind of soil hydraulic conductivity apparatus for automatically measuring that belongs to, and particularly a kind of full-automatic disc type is inhaled and oozed instrument.
Background technology
Holard force parameter is the key parameter of the holard-solute migration and crop growth model, also is the important indicator in the researchs such as irrigation is assessed, unconventional water conservancy is used.Each class model has been widely used in describing water and solute migration process and the soil-vegetation-atmospheric water transmission course between upper soll layer and the underground water, and the precision of model prediction depends on the accuracy of characteristic curve of soil moisture and water guide parameter to a great extent.For a long time, Chinese scholars has developed several different methods and has measured holard force parameter, but requires difference owing to the theoretical foundation of the whole bag of tricks and to environmental baseline, often causes the inconsistency of institute's measurement result.The foreign scholar is infiltrated model to point source and is furtherd investigate in recent years, adds the continuous development to theory relation between the soil water movement characteristic parameter, and decision soil water movement parameters relationship is able to clearly.Also make simultaneously the theoretical foundation of utilizing the disc type suction to ooze instrument (Disk Tension Infiltrator) mensuration holard force parameter constantly perfect, and expanded disc type and inhaled the function of oozing instrument.Disc type is inhaled and to be oozed instrument and also be referred to as disc type tension force and infiltrate instrument, is to be designed and developed in 1988 by Perroux and White, and is used for the equipment of field in-site detecting Soil Hydraulic Characteristic Parameters.At present disc type is inhaled and is oozed instrument and can be used for field test soil and inhale the rate of oozing, movable and motionless liquid water content and water guide factor of porosity near saturated hydraulic conductivity, soil.Because it is simple fast that instrument is oozed in the disc type suction, is convenient to measure field topsoil hydraulic characteristic, therefore in the research aspect this tremendous development arranged in recent years.
Measuring the soil hydraulic conductivity main method has dicyclo method, Gui Fuyi, rainfall method, Philip-Dune method etc., and these methods use in the open air, particularly often require great effort in the slope, time-consuming.In recent years disc type is inhaled and to be oozed the mensuration that instrument is widely used and can be applied to less slope soil hydraulic conductivity, although disc type is inhaled and oozed instrument the few advantage easy to use of water is arranged, it is relatively more difficult to adorn water in the open air, by the time-consuming shortcoming such as be inaccurate of rod reading.
Summary of the invention
The purpose of this utility model is, provides a kind of full-automatic disc type to inhale and oozes instrument, and this full-automatic disc type is inhaled and oozed instrument and can automatically measure soil in the open air and inhale the rate of oozing near saturated hydraulic conductivity, soil.
In order to realize above-mentioned task, the utility model is taked following technical solution:
A kind of full-automatic disc type is inhaled and is oozed instrument, it is characterized in that, this suction is oozed instrument and is comprised that the every group 5 different disc type of cover disk track inhaled and ooze device, and disc type is inhaled to ooze and is fixed with standpipe on the device and pipe is oozed in suction, and the upper end of standpipe is connected with disc type by the 3rd valve on pipeline and the pipeline thereof and inhales and ooze controller; There are air intake opening, air intake opening and suction to ooze above described suction is oozed and managed first valve is arranged between the pipe; The lower end of standpipe is connected with differential pressure pickup by pipeline, and this differential pressure pickup oozes controller with the disc type suction and links to each other; The differential pressure pickup top is connected with the pipeline connection of second valve and the 3rd valve;
Differential pressure pickup converts the water level signal in the standpipe to electric signal, sends into disc type and inhales and to ooze in the controller, is inhaled the data acquisition unit that oozes controller by disc type and the signal of differential pressure pickup is write down automatically inhales the infiltration process and the storage of oozing device.
Full-automatic disc type of the present utility model is inhaled and is oozed instrument, possesses following function:
1. can inhale to ooze in the instrument standpipe to disc type automatically and fill water;
2. write down 5 suctions simultaneously automatically and ooze the instrument infiltration process, time interval 1min, disc type is inhaled the control module of oozing in the controller and be can be as accurate as in the 1sec.
Description of drawings
Fig. 1 is a structural representation of the present utility model; Among the figure, 1 is first valve, and 2 is that second valve, 3 is the 3rd valve, and 4 is standpipe, and 5 for infiltrating dish, and 6 is soil, and 7 is sand bed, and 8 is sensor, 9 pressure when measuring.
Fig. 2 is that disc type is inhaled the cut-away view that oozes controller;
Be described in further detail below in conjunction with accompanying drawing with principle of work of the present utility model.
Embodiment
Referring to Fig. 1, Fig. 2, full-automatic disc type of the present utility model is inhaled and is oozed instrument, comprising:
(1) disc type is inhaled and is oozed device, can ooze instrument by the suction of different disk tracks and form, every group 5 cover.Disc type is inhaled to ooze and is fixed with standpipe on the device and pipe is oozed in suction, inhales to ooze the pipe top and have air intake opening, air intake opening and suction to ooze first valve 1 is arranged between the pipe; (2) differential pressure pickup is inhaled the water level signal of oozing in the device standpipe with disc type and is converted electric signal to, and model is the D3A type differential pressure pickup of MAT; (3) disc type is inhaled and is oozed the instrument controller, it is by data acquisition module (adopting the CR200 data acquisition unit of U.S. Compbellsci company), supply module (being used for 12V DC voltage (DC) being provided and providing 5V DC voltage (DC)) to differential pressure pickup to data acquisition unit and water pump, control module and water pump are formed, supply module respectively and supply module, water pump is communicated with, control module is connected with data acquisition module, be provided with the pressure calibration of measuring process in the control module, logging software, data acquisition unit is the signal record of sensor and storage, and water pump then is used for disc type and inhales and ooze the instrument standpipe and fill water.Above-mentioned 3 parts link to each other by pipeline, and disc type is inhaled to ooze and is connected with first valve 1 on the device, and sensor is connected the 3rd valve 3 by pipeline and is connected with the below of standpipe, and differential pressure pickup is inhaled the data acquisition module that oozes controller with disc type and linked to each other;
Its course of work is to inhale the size of oozing the device chassis according to disc type at first in the open air and prepare the soil infiltration face, the thick fine sand of shop 2mm.Open first valve 1 and the 3rd valve 3, close second valve 2, pour water to standpipe, after filling, standpipe closes the 3rd valve 3, open first valve 1 and second valve 2, open disc type simultaneously and inhale and to ooze the controller power supply, disc type is inhaled ooze device and be put on the ready soil face and begin to measure infiltration process, the pressure during measurement is: h
0=h
2-h
1-h
cFinish other 4 disc types according to above step and inhale the placement of oozing device.
Differential pressure pickup will go into to be seeped into disc type and inhale the water level signal ooze in the device and convert electric signal to, send into disc type and inhale and ooze in the controller, be inhaled the data acquisition module that oozes controller by disc type and the signal of differential pressure pickup is write down automatically inhale the infiltration process and the storage of oozing device.
Claims (2)
1. a full-automatic disc type is inhaled and is oozed instrument, it is characterized in that, this suction is oozed instrument and is comprised that the every group 5 different disc type of cover disk track inhaled and ooze device, and disc type is inhaled to ooze and is fixed with standpipe on the device and pipe is oozed in suction, and the upper end of standpipe connects and is connected with disc type by the 3rd valve on pipeline and the pipeline thereof and inhales and ooze controller; There are air intake opening, air intake opening and suction to ooze above described suction is oozed and managed first valve is arranged between the pipe; The lower end of standpipe is connected with differential pressure pickup by pipeline, and this differential pressure pickup oozes controller with the disc type suction and links to each other; The differential pressure pickup top is connected with the pipeline connection of second valve and the 3rd valve;
The water level signal that differential pressure pickup will infiltrate in the dish converts electric signal to, sends into disc type and inhales and to ooze in the controller, is inhaled the data acquisition unit that oozes controller by disc type and the signal of differential pressure pickup is write down automatically inhales the infiltration process and the storage of oozing device.
2. full-automatic disc type as claimed in claim 1 is inhaled and is oozed instrument, it is characterized in that, described disc type is inhaled and is oozed controller and be made up of data acquisition module, supply module, control module and water pump, be provided with the pressure calibration and the logging software of measuring process in the control module, supply module is communicated with supply module, water pump respectively, and control module is connected with data acquisition module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079341 CN200972443Y (en) | 2006-07-10 | 2006-07-10 | Automatic disc seepage absorption instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620079341 CN200972443Y (en) | 2006-07-10 | 2006-07-10 | Automatic disc seepage absorption instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972443Y true CN200972443Y (en) | 2007-11-07 |
Family
ID=38883698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620079341 Expired - Fee Related CN200972443Y (en) | 2006-07-10 | 2006-07-10 | Automatic disc seepage absorption instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972443Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769850B (en) * | 2010-01-25 | 2011-08-17 | 张建军 | Tester for saturated hydraulic conductivity in soil |
| CN106248548A (en) * | 2016-07-21 | 2016-12-21 | 江西理工大学 | Aeration zone boring constant head water injection test saturation permeability coefficient method of testing |
-
2006
- 2006-07-10 CN CN 200620079341 patent/CN200972443Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769850B (en) * | 2010-01-25 | 2011-08-17 | 张建军 | Tester for saturated hydraulic conductivity in soil |
| CN106248548A (en) * | 2016-07-21 | 2016-12-21 | 江西理工大学 | Aeration zone boring constant head water injection test saturation permeability coefficient method of testing |
| CN106248548B (en) * | 2016-07-21 | 2018-08-21 | 江西理工大学 | Aeration zone drilling constant head water injection test saturation permeability coefficient test method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |